baber/WOPTO huggingface dataset:
Patent GB-375596-A (GB)
Title: Improvements in stone drills
IPC: B23B51/00
Filed: 1931-08-07
Abstract: 375,596. Drills. SCHEEREN, J., 1, Spreestrasse, Niedersch÷neweide, and STILLER, M., 1, Sturmvogelstrasse, Johannisthal, both in Berlin. Aug. 7, 1931, No. 22439. [Class 83 (iii).] The cylindrical shaft of a stone drill is closely surrounded by a helix of wire or the like to convey away the chips. The helix 5 is preferably of square or rectangular cross section having one flat side against the drill shaft 1 which consists of a tube into one end of which a plug 2 forming the drill head is inserted, a plug 3 forming the fixing part of the drill being inserted into the other end, the plugs being fixed by brazing. One end of the helix 5 is hooked at 6 into a corresponding hole in the drill head 2, while the other end provided with an upset thickening 7 is inserted in a hole 9 in a collar 8, which can be turned on the plug 3, by a hole 12, so as to tension the helix. The collar 8 is fixed in the desired position by a screw 10, Fig. 4, the point of which engages in a shallow bore 11. The cutter of the drill is formed of a hard metal plate 13 inserted axially in the head 2, the face 14 being hollow ground. The backs of the two cutting edges are supported by parts 15 of the drill head 2, and the cutter 13 is fixed in the head by welding, brazing, and the like.
Patent GB-1524412-A (GB)
Title: Digital indicator device having stepping means
IPC: G09F11/23
Filed: 1976-06-01
Abstract: 1524412 Digital clocks DIEHL 1 June 1976 [7 June 1975] 22538/76 Heading G3T [Also in Division G4] A device for displaying a consecutive series of decimal numbers from 0 or 1 up to a two digit number, such as in twenty-four hour clock, is of the kind which a first number wheel 2 carries a sequence of units digits 16 and has a window 2a while a second number wheel 1 carries an irregular sequence of tens digits 15 and an irregular sequence of units digits 14 which can be seen though the window 2a in the first wheel 2, the two wheels being driven by stepping mechanism, Figs. 3 and 4, at times individually and at other times together whereby to display the complete series, and has the digits on the respective wheels chosen and disposed so as to minimize the number of digits on each wheel and therefore allow the digits to be as large as possible. In Fig. 7 arranged to display 0-24 the unit wheel 2 carries only eight of the digits and the second wheel fills in the remainder of the series. In an alternative Fig. 8 (not shown) arranged to display 1-12 the first wheel carries only the six digits 4-9 and the second wheel fills in 1-3 and 10-12.
Patent GB-878499-A (GB)
Title: Apparatus for handling strip metals
IPC: B21C47/26
Filed: 1957-12-13
Abstract: 878,499. Winding and reeling. WILSON, L. Dec. 13, 1957 [Feb. 13, 1957], No. 22625/60. Divided out of 878,497. Class 83 (4). Apparatus for forming an open lap coil of sheet metal comprises a rotatable pay-off turntable, a power driven re-coiling turntable in the same horizontal plane, a spool of spacer strand, means for guiding the strand between the laps as the opened coil is being formed, and means for withdrawing the strand from between the laps of the ready opened coil without uncoiling same. As shown, strip S from coil C on turntable 1 is led via back tension brake apparatus B to collapsible mandrel 17 of turntable 7 to form an open lap coil C<SP>1</SP>. While open recoiling, a strand 29 is fed continuously between the laps from spool 28. When it is desired to remove the strand on completion of the open re-coiling, a portion of the strand between guide 36 and coil C<SP>1</SP> is placed in a guide on horizontal arm 39 and motor 35 is used to drive spool 28 in reverse direction so that the strand is drawn upwardly out of the spaces between the laps and returned to the spool. Specification 878,500 also is referred to.
Patent GB-160738-A (GB)
Title: Improvements in and in the manufacture of scouring and emulsifying compounds
IPC: C14C9/02
Filed: 1920-07-30
Abstract: Cleansing-compositions to be mixed with water to scour leather, with soda solution to scour wool, and with oils to dress leather, are prepared by mixing neutralized sulphonated oils such as sulphoricinate of soda or ammonia with an organic solvent, preferably non-inflammable.  Solvents specified are carbon tetrachloride, tetrachlorethane, trichlorethylene, tetrahydronaphthalene, benzene, and naphtha.  In an example, 40 lb. of sulphoricinate are mixed with 60 lb. of tetrachlorethane. For wool scouring, 1 lb. of the product is used with 10 lb. of soda, and for dressing chrome leather 4 lb. with 2 lb. of neatsfoot oil and 2 lb. of skin oil.
Patent GB-258084-A (GB)
Title: A new or improved folding table
IPC: A47B5/04
Filed: 1925-09-11
Abstract: 258,084. Townley, D. C., Morgan, R. E., Cook, S. P., and Bishop, W. H. Sept. 11, 1925. Stays.-A table of the falling flap type for use more especially in motor cars is supported in position for use by rods f pivoted at their lower ends to the wall or floor and sliding through screw clamps e pivoted on the edges of the table.
Patent GB-1495774-A (GB)
Title: Multi-speed gear hubs
IPC: B62M11/16
Filed: 1975-05-23
Abstract: 1495774 Change speed gear; ratchet clutches FICHTEL & SACHS AG 23 May 1975 [29 May 1974] 22708/75 Headings F2C and F2D In a planetary three-speed hub gear in which an external control, in moving from second to low gear, displaces a ring gear 10 axially rightwards against the restoring force of a spring 11, and the ring gear carries pawls 15 engaging ratchet teeth 16 in the hub shell 13, at least the ratchet teeth 16 or the pawls 15 have drive contacting faces oblique to the spindle axis, whereby torque loading reinforces the restoring force of the spring 11. A sleeve 5, slidable axially in splines in an input member 2 and shifted axially by the external control, has clutch teeth 7, which, in the extreme left position shown, clutch teeth in a planet carrier 8, the pinions of which, reacting on a fixed sun 12, impart overdrive to the ring gear 10 and thence through the pawls 15 to the hub shell. Moved one step rightwards, the sleeve 5 clutches teeth 6 in the ring gear 10 for direct drive to the hub shell through the same pawls 15. Moved a second step rightwards the sleeve 5, still clutching the ring gear 10 also, through a projecting ring on its clutch teeth, shifts the ring gear rightwards opposed by the spring 11, to cause a coned surface 24 in the hub shell to lift the pawls 15 out of action, whereupon previously overrunning pawls 14 now transmit reduced drive from the planet carrier 8 to the hub. In high and second ratios the torque load of the pawls 15 against the oblique ratchet teeth 16 in the hub shell produce an axial leftward force component reinforcing the spring 11. The pawls themselves are retained by the usual encircling ring in grooves in the ring gear, such grooves being either axial or inclined at the same angle as that of the ratchet teeth 16, the leading edges of the pawls being also axial or inclined. The pawls may (Fig. 11a, not shown) be parallelogram shaped.
Patent GB-887876-A (GB)
Title: New anthraquinone dyestuffs and process for their manufacture
IPC: C09B1/514
Filed: 1959-07-02
Abstract: Anthraquinone dyestuffs are made by treating an anthraquinone of the formula <FORM:0887876/IV (c)/1> where each X is hydrogen or hydroxyl and Aryl is a benzene residue which may be substituted at a temperature below 60 DEG C. in 75%-90% sulphuric acid with formaldehyde or an agent yielding formaldehyde, such as hexamethylene tetramine.  The substituents in the benzene residue may be methyl or acylamino.  The dyestuffs dye cellulose ester and polyethylene terephthalate fibres red-blue to green-blue shades from aqueous dispersion.
Patent GB-465704-A (GB)
Title: Improvements in and relating to oil-in-water emulsions
IPC: C10M173/00
Filed: 1936-08-20
Abstract: In aqueous oil emulsions suitable for use as lubricants the proportion of oil present is reduced by the addition of a small amount of a nitrite, e.g. sodium nitrite, for example 0,5 to 0,025 per cent of the water content of the emulsion, and the amount of oil can then be reduced to about 1 per cent.  Such emulsions may be used for the treatment of cast iron or malleable iron, and are stated to prevent the formation of rust: they may also be used as cooling means for internal-combustion engines.
Patent GB-877023-A (GB)
Title: Improvements in or relating to rotary fluid prime movers
IPC: F01C11/00
Filed: 1959-07-03
Abstract: 877,023. Rotary motors. YOKOTA, H., and YOKOTA, S. July 3, 1959 [Oct. 27, 1958], No. 22990/59. Class 110 (2). In a rotary power unit comprising two motors of the Roots-blower type mounted in balance on common shafting 5, 6 interconnected together by timing gears 11, 12, the side covers 3, 4 of the common casing A are each provided with main admission ports 20, 23 respectively and at least one additional relieving admission port such as 31 angularly spaced therefrom. The ports 20, 23, 31 communicate with an inlet pipe 17 having a strainer 18.
Patent GB-1100513-A (GB)
Title: Improvements in or relating to sewing machine needles
IPC: D05B85/06
Filed: 1966-05-24
Abstract: 1,100,513. Making needles. UNION SPECIAL MACHINE CO. 24 May, 1966 [24 May, 1965], No. 23002/66. Heading B3A. [Also in Division D1] A sewing machine needle is formed from a blank having a conical pointed front portion 12, a cylindrical rear shank 20, and an intermediate conical blade portion, by initially subjecting the entire blade portion to pressure for forming thereon opposed parallel flats 22, 23 joined by ovaloid portions. An eye 30 is then formed in the leading part of the blade portion, a constantwidth thread groove 28 is formed in one ovaloid portion from the shank to a position beyond the eye, a groove 39 is formed in the opposed ovaloid portion across the eye, a constantwidth groove 29 is formed in said opposed ovaloid portion at the trailing end of the blade, and said opposed ovaloid portion is recessed as at 26 between grooves 29 and 39. The needle is then bent to the required curvature with groove 28 on the convex side. In a modification groove 29 is omitted.
Patent GB-1089113-A (GB)
Title: Preparation of polycarbonates
IPC: C08G64/30
Filed: 1964-09-25
Abstract: Polycaronates are prepared by contacting a cyclic carbonate which is free from unsaturation with a catalyst of formula R1-M-R112 where M is a Group IIIb metal, R1 is H, halogen, hydrocarbon radical and R11 is H, halogen, hydrocarbyloxy or hydrocarbyl.  The carbonate may contain a carbonate ring of at least 6 atoms which are all carbon or oxygen and which has no more than 4 substituents.  Compounds specified include 4,4-dimethyl-2,6-dioxacyclohexanone, 4,4 - di(chlormethyl) - 2,6-dioxacyclo - hexanone, 4,4 - di(cyanomethyl)-2,6 - dioxacyclohexanone, 3 - chloro - methyl-2,6 - dioxacyclohexanone, 3 - phenyl - 2,6-dioxacyclohexane, 3,4,5 - trimethyl - 2,6 - dioxacyclohexanone, 3 - oxo - 2,4,7 - trioxaspiro-4,5 - decane and 4,4 - di(acetoxymethyl) - 2,6-dioxacyclohexanone. A copolymer may be formed by mixing the carbonate with a lactone, e.g. epislon-caprolactone.  Catalyst specified include triisobutyl aluminium, triethyl aluminium, diethyl aluminium chloride and ethyl aluminium dichloride.  An active hydrogen compound may also be present as cocatalyst. This may be pre-reacted with the catalyst or merely added with it.  For example, 1-130 mole per cent of water may be pre-reacted with triisobutyl aluminium to give poly(isobutyl-aluminium oxide).  The polycarbonate formtion may be at 0-225 DEG  C. under a nitrogen atmosphere.  The product may have a molecular weight of at least 10,000.
Patent GB-347981-A (GB)
Title: Improved rear wheel suspension for motor cycles and like vehicles
IPC: B62K25/28
Filed: 1930-07-30
Abstract: 347,981. Cycle spring frames. GILLET, R. 128 bis, Route d'Orleans, Montrouge, Seine, France. July 30, 1930, No. 23044. [Class 136 (iii).] In a rear wheel suspension for motor cycles &c., the wheel is carried by a secondary frame hinged to the main frame in front of the rear wheel and resiliently supported by the main frame behind the rear wheel by means of opposed helical springs backed by a shock absorber such as a stiff spring, rubber buffer, dashpot, &c. The secondary frame is formed of members 8, 8<1>, 8<11>, 8<111> and is pivoted at 6 to the main frame, the pivotal movement being controlled by opposed springs 11, 12 mounted at the rear of the wheel in a tubular &c. guide member 4 carried by extensions 2, 3 of the main frame. The members 8<11>, 8<111> on opposite sides of the wheel are connected by a stirrup 9, which is provided with a lug 10 engaging the opposed springs 11, 12 through dished washers 13, 14, Fig. 2. In order to prevent shocks when the upper spring 11 is fully compressed, a short stiff supplementary spring, a rubber block, or a dashpot &c. is mounted in the upper cap 20 of the member 4. The pivotal movement is frictionally damped by means of leather &c. shoes 16, adapted to slide on a central rod 18, and secured to jaws 15, which are spaced circumferentially around the rod 18 by lugs on a washer 17. Outwardly-projecting lugs on the upper ends of the jaws 15 are formed with bevelled lower faces, so that the pressure of the frictional material on the rod 18 is varied in proportion to the pressure exerted on the springs. The springs 11, 12 may be adjusted by adjustment of the cap 20, which is in screw-threaded engagement with a collar at the upper end of the member 4. The supplementary frame members 8 on opposite sides of the wheel may be connected by an upwardly-extending bridge member having an extension provided with rollers engaging guides fixed to the main frame members 2.
Patent GB-222653-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B75/00
Filed: 1923-09-14
Abstract: 222,653. Beattie, W. Sept. 24, 1923. No Patent granted (Sealing fee not paid). Valve gear.-In a double-acting four-stroke engine with pairs of cylinders 1 on each side of the crank shaft 2, the outer inlet and exhaust valves 9, 10 are lifted by a cam shaft 13, and the inner valves are lifted by two cam shafts 11.
Patent GB-1448041-A (GB)
Title: Data processing equipment
IPC: G05B19/05
Filed: 1974-05-23
Abstract: 1448041 Data processor STANDARD TELEPHONES & CABLES Ltd 23 May 1974 23067/74 Heading G4A A data processor includes inputs connected to respective input staticizers, outputs connected to respective output staticizers, a random access memory arranged to store intermediate processing results, an input arranged to receive instructions having function and address parts, and a logic unit arranged to process one bit operands from the input staticizers and/or the random access memory to produce one bit results which are directed to an output staticizer or the random access memory, the operand source and result destinations being selected by the address parts of instructions whose function parts determine the operations to be performed, e.g. read, write, AND, OR. The processor may be used to interface controlled equipment, e.g. a telephone exchange, and a controlling digital computer and may be formed on a single integrated circuit chip. One or more of the processors may be supplied with instructions from an external read only program memory. Several such program memories storing respective programs may be provided, a selected one being supplied with clock pulses. In a first embodiment the input staticizers, output staticizers, and the random access memory are connected, together with a number of delay units formed by shift registers to internal input and output buses. All the units, input staticizer delays &c., together with various clock pulse sources are addressed by the address part of an instruction and the buses are connected to a push down stack. The processor performs AND and OR operations between the contents of the top two stack locations and loads the result into the top location. The result may also be transferred to any unit, e.g. output staticizer, addressed by the current instruction, or may be retained in the stack. In a second embodiment, Fig. 3, the random access memory RAM, delays DEL, and input and output staticizers IS, OS are connected to the logic unit via selectors WAS, RAS activated by the address part of an instruction ADO, the logic unit being controlled by the function part FO. The logic unit, Fig. 4, consists of two NAND gates N1, N2, each formed by an AND gate and a bi-stable, which NANDs successive operands. The instruction format allows the outputs of both NANDs to be connected to the input of the other NAND or to addressed units in the processor, output staticizers &c., and the Specification gives details of the way in which Boolean functions can be evaluated. Additional external random access memories may be coupled to the processor.
Patent GB-669872-A (GB)
Title: Improvements in or relating to apparatus for producing repeated flashes of light from high pressure gas-or vapour-filled electric discharge lamps
IPC: H05B41/34
Filed: 1949-09-06
Abstract: 669,872. Visible signalling apparatus. GENERAL ELECTRIC CO., Ltd., COOPER, A. D., NELSON, E. H., and WILLOUGHBY, A. H. Aug. 4, 1950. [Sept. 6, 1949] No. 23094/49. Class 118 (ii). [Also in Groups XXXV and XL (a)] In Morse or other flash signalling apparatus comprising a HPMV lamp with auxiliary discharge, a switch 9 operated by a Morse key M alternately strikes and extinguishes the main discharge to produce the flashes, a transformer secondary in series with ballast impedances Z1, Z2, Z3 continuously maintains the auxiliary discharge 7-11 in operation, and means automatically boosts the auxiliary discharge whenever the switch 9 is operated to restrike the main discharge. The boost may be effected by cutting out a choke Z3 in series with the auxiliary discharge by a cut-out 12 in parallel with the operating coil 10 for the main discharge switch 9. The impedance Z2 may be a choke or a tungsten lamp so that its temperatureresistance coefficient renders the auxiliary discharge increase only temporary. The boost permits a lower restrike voltage, or lower auxiliary current, or greater separation of the auxiliary from the main discharge so that the light from the auxiliary discharge can be more readily obscured.
Patent GB-193374-A (GB)
Title: Apparatus for regulating the speed ratio of individual driving elements of multiple prime movers
IPC: H02P5/50
Filed: 1922-08-25
Abstract: 193,374. Siemens - Schuckertwerke, Ges. Feb. 18, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Speed maintaining systems for a group of motors individually driving separate parts of paper-making or other machinery. Each motor 21 drives the revolving fieldframe 24 of a small synchronous dynamoelectric machine of which the armature 27 is fed with alternating current of a determined master frequency and is free to make angular movements under the mutual action of the two revolving magnetic fluxes, set up when the speed of the field frame 24 exceeds or falls below synchronism with the armature current. The angular movement actuates a rheostat 30 in the field of the motor 21 so as to restore the speed to normal. The revolving field 24 is excited by direct current through slip-rings.
Patent GB-1466869-A (GB)
Title: Light storage systems
IPC: C09K11/08
Filed: 1974-08-02
Abstract: 1466869 Electroluminescence DEFENCE SECRETARY OF STATE FOR 2 Aug 1974 [16 May 1973] 23273/73 Heading C4S [Also in Divisions G4 and H4] An electroluminescent device 10 for storing energy releasable in the form of light includes a ZnS phosphor doped with at least Pb as activator, the phosphor particles being coated with Cu, and the device being irradiated with infra-red so as to emit light after electrical excitation. Mn and Cu may be additional activators. Film 12 comprises phosphor particles in transparent polymethyl methacrylate resin, lamina 14 is of Al, and glass sheet 16 has conductive tin oxide strip 18. Pb concs. may be 0À03 to 0À54 wt. per cent, firing times may be ¢ to 5 hours and firing temperatures 800‹ to 1100‹ C. 4% Pb is included initially to allow for evaporation during firing. Mn may be in amount 10<SP>-3</SP> to 10<SP>-1</SP> wt. per cent, with initial concs. twice these values. Control 32 determines duration and intensity of excitation of device 10 by source 22 (e.g. variation of D.C. voltage or of pulse ht. or length of unidirectional pulses), and also commencement, duration and intensity of infra-red source 24 (e.g. GaAs, lamp, and 0À75 to 4 Ám. emission) and gate 40 operation, while photosensitive device 28 (e.g. a photodiode) (see Division Gl) may have two receptors and filter 48 responsive to green and orange respectively while optionally excluding infra-red in the case that a short infra-red pulse stimulates Pb only (green emission) while a longer pulse stimulates Pb and Mn to emit a green-orange mix. Repeated light pulses may result from a single excitation. The intensity increases as the infra-red pulse duration increases from 5 to 125 ms. and tends to constancy for greater duration. A particular sequence of operations is described to produce logic signals 0 and 1 and to operate as an information storage and retrieval apparatus (see Division G4). A mosaic of devices may display a radar track (see Division H4) with progressively dimmer spots indicating former positions. Ageing effects may be mitigated by pulse operation. The Cu coating promotes h.v. gradients, making D.C. operation practicable without impairing pulse or A.C. operation. Factors governing emission intensity are listed.
Patent GB-666445-A (GB)
Title: Improvements in control circuits for use in automatic exchange systems
IPC: H04Q1/18
Filed: 1949-09-08
Abstract: 666,445. Automatic signalling systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 8, 1949 [Sept. 11, 1948], No. 23280/49. Class 40 (iv). A wiper e moves over contacts e<SP>1</SP> corresponding to communication channels, contacts marked as free channels having a direct voltage potential algebraically lower than that of contacts corresponding to busy channels; the wiper is connected to the cathode of a valve B5 cross-coupled to a valve B6, so that when one is conducting, the other is non-conducting; when the wiper d which is ganged with e reaches the position corresponding to wiper MS a high potential is applied from OI which, if the wiper e is on a contact corresponding to a free channel, causes valve B5 to conduct and valve B6 to cease conducting so as to release relay SM and stop the wipers d, e; but if the wiper e is on a contact corresponding to a busy channel, valve B5 does not conduct; when valve B5 conducts, the wiper is brought to the potential corresponding to a busy condition. The invention is described with reference to the system described in Specification 662,215, [Group XL (c)], in which a wiper MS is positioned in response to a numerical criterion on one of a series of contacts having different potentials and a further wiper d is stepped on over a further series of contacts having different potentials until it finds one having the same potential as the one marked by MS, when valve B4 is rendered non-conducting to stop wiper d. Preferably the relay SM is in the anode circuit of a valve B7 whose grid is directly connected to the grid of valve B6.
Patent GB-195010-A (GB)
Title: Improvements relating to tyre-inflating and like pumps
IPC: B60C29/06
Filed: 1922-08-28
Abstract: 195,010. Girod, H. Aug. 28, 1922. Joints with longitudinal pressure and with yielding outer part compressed.-A fitting for the end of the flexible tube used with pumps for inflating tyres and the like, which embodies the known feature of securing the tube within a recess in the pump when not in use, comprises a nipple c provided with a shoulder c<1> which expands the flexible tube a<1>, a member e adapted to be moved axially relatively to the nipple, as for instance by the screw threads c<2>, and provided with a tubular extension e<3> adapted to surround the end of the tube a<1> and grip the latter against the shoulder c'. and a split ring f mounted on the exterior of the member e and adapted to engage with the interior of the recess q when the tube is stored. A modified form of split ring is shown made up of one turn of a spiral of wire.